How: Used angle from data sheet, as well the angle tracker’s distance was known.
tan(angle)=height/ baseline
tan24=height/50 meters
2) We used some data taken straight from the Estes' Engine Chart, our own data reorganized, and some calculations to figure out our rockets final velocity:
the variables in the equation for final velocity that is used at the bottom of the chart are:
F=force v2= velocity 2 wav= average engine weight g=acceleration due to gravity t=time (we used our time up)
start weight (rocket and engine)
123.7 g
propellent weight
6.24g
final rocket weight B6 (intial-propellent)=123.7g-6.24g
117.46 g
average rocket weight (initial+final)/2=(123.7g+117.46g)/2
120.58 g
time up
1.84 s
distance up (calculated)
22 m
total impulse
5.00 N/s
time delay
2 s
max thrust
12.1 N
duration thrust (burn time)
.8 s
F (Force)= total impulse/ total time = 5 N/1.84 s
2.72 N/s
v2 = (F/wav-1) gt = (2.72 N/s/120.58g-1)x(-9.8m/s2) x 1.84s
Analysis:
Most of the information for our analysis came from Estes' Elementary Mathematics
of Model Flight.1) Calculating rocket’s maximum height.
How: Used angle from data sheet, as well the angle tracker’s distance was known.
tan(angle)=height/ baseline
tan24=height/50 meters
2) We used some data taken straight from the Estes' Engine Chart, our own data reorganized, and some calculations to figure out our rockets final velocity:
the variables in the equation for final velocity that is used at the bottom of the chart are:F=force v2= velocity 2 wav= average engine weight g=acceleration due to gravity t=time (we used our time up)
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